v3.25.4
Leases (Detail: Text Values) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Net Carrying Value for each Class of Leasing Assets [Line Items]    
Carrying amount of right-of-use assets included in "Property and equipment" € 3,700 € 3,900
Carrying amount of lease liabilities included in "Other liabilities" 4,200 4,500
Of which: Total future minimum rental payments for the Group headquarters in Frankfurt am Main that was sold and leased back on December 1, 2011 424  
Interest expense on lease liabilities 128 127
Expense relating to short-term leases for which recognition exemption has been used 2 2
Expense relating to leases of low-value assets for which recognition exemption has been used (less than) 1 1
Income from subleasing right-of-use assets 19 24
Cash outflow for leases 622 678
Of which: Expenditures made for real estate rentals 613 669
Of which: Principal portion of lease payments 496 552
Of which: Payments for the interest portion 125 126
Potential payment exposures arising from extension options 4,700  
Properties    
Net Carrying Value for each Class of Leasing Assets [Line Items]    
Carrying amount of right-of-use assets included in "Property and equipment" 3,700 3,900
Vehicles    
Net Carrying Value for each Class of Leasing Assets [Line Items]    
Carrying amount of right-of-use assets included in "Property and equipment" 19 19
Deutsche Bank AG    
Net Carrying Value for each Class of Leasing Assets [Line Items]    
Carrying amount of lease liabilities included in "Other liabilities" € 4,193 € 4,488